enthalpy diagram\nreaction progress\nenergy and enthalpy statements\n1 the net enthalpy is represented by…

enthalpy diagram\nreaction progress\nenergy and enthalpy statements\n1 the net enthalpy is represented by i\n2 the net enthalpy is represented by ii\n3 the activation energy has a positive value.\n4 the activation energy has a negative value.\n5 the net enthalpy has a positive value.\n6 the net enthalpy has a negative value.\nnumerical response\n1. the statements that apply to the forward reaction represented by the enthalpy diagram above are numbered ____, ____, and ____. (record all three digits of your answer in any order in the numerical - response section on the answer sheet.)

enthalpy diagram\nreaction progress\nenergy and enthalpy statements\n1 the net enthalpy is represented by i\n2 the net enthalpy is represented by ii\n3 the activation energy has a positive value.\n4 the activation energy has a negative value.\n5 the net enthalpy has a positive value.\n6 the net enthalpy has a negative value.\nnumerical response\n1. the statements that apply to the forward reaction represented by the enthalpy diagram above are numbered ____, ____, and ____. (record all three digits of your answer in any order in the numerical - response section on the answer sheet.)

Answer

Explanation:

Step1: Define net - enthalpy and activation energy

Net enthalpy ($\Delta H$) is the difference in enthalpy between products and reactants. Activation energy ($E_a$) is the energy barrier that must be overcome for the reaction to proceed.

Step2: Analyze the enthalpy diagram

The height from the reactants to the peak of the curve is the activation energy. Since the peak is above the reactants, the activation energy has a positive value (Statement 3). The net enthalpy is the difference in enthalpy between products and reactants. Here, the products have a higher enthalpy than the reactants, so the net enthalpy has a positive value (Statement 5). The net enthalpy is represented by the vertical distance between the products and reactants, which is II (Statement 2).

Answer:

2, 3, 5